Description
In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| xmlsoft | libxml2 | < 2.13.8, 2.14.0 – < 2.14.2 | 2.13.8 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libxml2 | 2.12.7+dfsg+really2.9.14-1 | — |
| Debian 13 | libxml2 | 2.12.7+dfsg+really2.9.14-1 | — |
| Debian 12 | libxml2 | 2.9.14+dfsg-1.3~deb12u2 | DSA-5949-1 |
| Debian 11 | libxml2 | 2.9.10+dfsg-6.7+deb11u7 | DLA-4146-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | libxml2 | 2.12.7+dfsg+really2.9.14-0.4ubuntu0.1 | — |
| Ubuntu 24.04 LTS | libxml2 | 2.9.14+dfsg-1.3ubuntu3.3 | USN-7467-1 |
| Ubuntu 22.04 LTS | libxml2 | 2.9.13+dfsg-1ubuntu0.7 | USN-7467-1 |
| Ubuntu 20.04 LTS | libxml2 | 2.9.10+dfsg-5ubuntu0.20.04.10 | USN-7467-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | libxml2 | 2.9.4+dfsg1-6.1ubuntu1.9+esm3 | USN-7467-2 |
| Ubuntu Pro 16.04 LTS | libxml2 | 2.9.3+dfsg1-1ubuntu0.7+esm8 | USN-7467-2 |
| Ubuntu Pro 14.04 LTS | libxml2 | 2.9.1+dfsg1-3ubuntu4.13+esm10 | USN-7896-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | libxml2 +3 | 2.12.5-9.el10_0 | RHSA-2025:13429 |
| RHEL 9 | libxml2 +2 | 2.9.13-12.el9_6 | RHSA-2025:13428 |
| RHEL 8 | libxml2 +2 | 2.9.7-21.el8_10.3 | RHSA-2025:13203 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | libxml2 +2 | 2.9.13-12.el9_4 | RHSA-2025:13677 |
| RHEL 9.2 E4S | libxml2 +2 | 2.9.13-3.el9_2.9 | RHSA-2025:13683 |
| RHEL 9.0 E4S | libxml2 +2 | 2.9.13-1.el9_0.7 | RHSA-2025:13684 |
| RHEL 8.8 TUS | libxml2 +2 | 2.9.7-16.el8_8.12 | RHSA-2025:13806 |
| RHEL 8.8 E4S | libxml2 +2 | 2.9.7-16.el8_8.12 | RHSA-2025:13806 |
| RHEL 8.6 TUS | libxml2 +2 | 2.9.7-13.el8_6.12 | RHSA-2025:13688 |
| RHEL 8.6 E4S | libxml2 +2 | 2.9.7-13.el8_6.12 | RHSA-2025:13688 |
| RHEL 8.6 AUS | libxml2 +2 | 2.9.7-13.el8_6.12 | RHSA-2025:13688 |
| RHEL 8.4 EUS Long Life | libxml2 +2 | 2.9.7-9.el8_4.8 | RHSA-2025:13788 |
| RHEL 8.4 AUS | libxml2 +2 | 2.9.7-9.el8_4.8 | RHSA-2025:13788 |
| RHEL 8.2 AUS | libxml2 +2 | 2.9.7-9.el8_2.5 | RHSA-2025:13689 |
| RHEL 7 ELS | libxml2 +3 | 2.9.1-6.el7_9.13 | RHSA-2025:13789 |
| Red Hat Hardened Images 1 | libxml2 +4 | 2.15.2-0.3.hum1 | RHSA-2026:7519 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libxml2 +3 | 2.12.5-9.el10_0 | ALSA-2025:13429 |
| AlmaLinux 9 | libxml2 +2 | 2.9.13-12.el9_6 | ALSA-2025:13428 |
| AlmaLinux 8 | libxml2 +2 | 2.9.7-21.el8_10.3 | ALSA-2025:13203 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libxml2 | 2.12.5-9.el10_0 | RLSA-2025:13429 |
| Rocky Linux 9 | libxml2 | 2.9.13-12.el9_6 | RLSA-2025:13428 |
| Rocky Linux 8 | libxml2 | 2.9.7-21.el8_10.3 | RLSA-2025:13203 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | libxml2 +1 | 2.10.3-150500.5.26.1 | SUSE-SU-2025:1438-1 |
| SLES 12 SP5 | libxml2 +1 | 2.9.4-46.84.1 | SUSE-SU-2025:1440-1 |
| SLES 3 | libxml2-python | 2.10.3-150500.5.26.1 | SUSE-SU-2025:1438-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | libxml2 | 2.11.6-slfo.1.1_3.1 | SUSE-SU-2025:20364-1 |
| SLE Micro 6.0 | libxml2 | 2.11.6-8.1 | SUSE-SU-2025:20333-1 |
| SLE Micro 5.5 | libxml2 +1 | 2.10.3-150500.5.26.1 | SUSE-SU-2025:1438-1 |
| SLE Micro 5.4 | libxml2 +1 | 2.9.14-150400.5.41.1 | SUSE-SU-2025:1435-1 |
| SLE Micro 5.3 | libxml2 +1 | 2.9.14-150400.5.41.1 | SUSE-SU-2025:1435-1 |
| SLE Micro 5.2 | libxml2 +1 | 2.9.7-150000.3.79.1 | SUSE-SU-2025:1439-1 |
| SLE Micro 5.1 | libxml2 | 2.9.7-150000.3.79.1 | SUSE-SU-2025:1439-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libxml2 | 2.13.8-1.1 | openSUSE-SU-2025:15019-1 |
| openSUSE Leap 15.6 | libxml2 +1 | 2.10.3-150500.5.26.1 | SUSE-SU-2025:1438-1 |
| openSUSE Leap 15.6 | python-libxml2-python | 2.9.7-150000.3.79.1 | SUSE-SU-2025:1439-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libxml2 | 2.13.8-r0 | — |
| Alpine v3.23 | libxml2 | 2.13.8-r0 | — |
| Alpine v3.22 | libxml2 | 2.13.8-r0 | — |
| Alpine v3.21 | libxml2 | 2.13.4-r6 | — |
| Alpine v3.20 | libxml2 | 2.12.10-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libxml2 | 2.11.8-r3 | — |
| Alpine v3.18 | libxml2 | 2.11.8-r3 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libxml2 +3 | 2.10.4-1.amzn2023.0.10 | ALAS2023-2025-963 |
| Amazon Linux 2 | libxml2 +3 | 2.9.1-6.amzn2.5.17 | ALAS2-2025-2860 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libxml2 | 2.11.5-5 | — |
| Azure Linux 2 (CBL-Mariner) | libxml2 | 2.10.4-7 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libxml2 +3 | 2.12.5-9.el10_0 | ELSA-2025-13429 |
| Oracle Linux 9 | libxml2 +2 | 2.9.13-12.el9_6 | ELSA-2025-13428 |
| Oracle Linux 8 | libxml2 +2 | 2.9.7-21.el8_10.3 | ELSA-2025-13203 |
| Oracle Linux 7 | libxml2 +3 | 2.9.1-6.0.11.el7_9.6 | ELSA-2025-13789 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | openjdk-7-jre | No fix yet | — |
Advisories 44
- ALSA-2025:13429 Moderate: libxml2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:13428 Moderate: libxml2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:13203 Moderate: libxml2 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:7519 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2025:13684 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:13677 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:13683 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:13429 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:13428 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2025-1439 Dell Secure Connect Gateway: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Oct 11, 2026
- RHSA-2025:13789 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2025:13806 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2025:13689 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2025:13788 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2025:13688 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2025:13203 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- WID-SEC-2025-0853 libxml2: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- USN-7467-2 libxml2 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-7896-1 libxml2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-7467-1 libxml2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2025:20333-1 Security update for libxml2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:1435-1 Security update for libxml2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20364-1 Security update for libxml2 SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5949-1 libxml2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4146-1 libxml2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2025-1905 IBM QRadar SIEM Komponente: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 4, 2026
- SUSE-SU-2025:1438-1 Security update for libxml2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1440-1 Security update for libxml2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:15019-1 libxml2-2-2.13.8-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1439-1 Security update for libxml2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1567 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2025-2360 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 17, 2025
- NCSC-2025-0333 Kwetsbaarheden verholpen in Oracle Financial Services NCSC-NL (Netherlands) · Oct 23, 2025
- NCSC-2025-0330 Kwetsbaarheden verholpen in Oracle Communications producten NCSC-NL (Netherlands) · Oct 23, 2025
- WID-SEC-2025-2356 Oracle Financial Services Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2025
- RLSA-2025:13429 Moderate: libxml2 security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:13428 Moderate: libxml2 security update Rocky Linux Security Advisories · Oct 7, 2025
- RLSA-2025:13203 Moderate: libxml2 security update Rocky Linux Security Advisories · Sep 8, 2025
- ELSA-2025-13789 Moderate: libxml2 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 8, 2025
- ELSA-2025-13429 Moderate: libxml2 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 8, 2025
- ELSA-2025-13428 Moderate: libxml2 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 7, 2025
- ELSA-2025-13203 Moderate: libxml2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 6, 2025
- ALAS2-2025-2860 Moderate: libxml2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 29, 2025
- ALAS2023-2025-963 Moderate: libxml2 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2025